diff --git a/src/config.c b/src/config.c
index 21b0b5e99..fbf3ca1ff 100644
--- a/src/config.c
+++ b/src/config.c
@@ -621,6 +621,10 @@ void loadServerConfigFromString(char *config) {
         goto loaderr;
     }
 
+    /* To ensure backward compatibility and work while hz is out of range */
+    if (server.config_hz < CONFIG_MIN_HZ) server.config_hz = CONFIG_MIN_HZ;
+    if (server.config_hz > CONFIG_MAX_HZ) server.config_hz = CONFIG_MAX_HZ;
+
     sdsfreesplitres(lines,totlines);
     return;